novice forensic medicine

Chapter 587

Xu Dayuan smiled helplessly, and showed Zhong Xiaoyan several documents.

"I didn't want to show these things. I'll give you another chance to say it yourself. I know that the pain you went through back then can be fought for you. We will do our best, but you don't want to say it.

Our Public Security Bureau also had a young man whose parents were killed when he was young. He lost part of his memory due to stimulation, but he was not blinded by hatred. With his own ability, he is now the deputy director of the technical department, even a little younger than you.

So I want to say that you are too persistent. From what you just said, we can feel that you are aware of your father's choice to commit suicide, and even agree with this choice.

There are many solutions to what happened back then. He chose the most radical and irresponsible one. He seemed to follow your mother for love, but he was actually cowardly, unwilling to face other people's doubts, and even throw you away. To irrelevant people, once and for all, this is not a solution, it is an escape.

Death is the most important thing, I don't want to judge anything, and I am not qualified to preach. This is the information we have investigated. I can show you. We found that at the end of December last year, you were in Qindao Baoning Automobile Sales Ltd., purchased a BMW 12 Series of the same model.

However, the buyer used the name of Li Xiangqian from Quanshan Village. His grandfather used to be the housekeeper of the Yun family. Although the land was turned over after the founding of the People's Republic of China, the Yun family has always treated them well and helped the Li family. You didn't say just now, At that time, your parents were buried, and they helped arrange it.

Liu Meiling returned to Qindao on August 8. You took advantage of this time to wear the same clothes as Liu Meiling and gave Li Li a cake. In the early morning of September 31, you drove and waited at the off-line location for road construction. You and Xu Qingquan’s The mobile phone has the function of location sharing, and you can control it at any time.

Later, when you saw a large truck approaching fast, you followed the police car, and suddenly changed lanes with high beams to overtake. You didn't collide, but he didn't notice the police car behind him, and it was too late to avoid it.

A car accident happened later, you did not leave in a hurry, you braked to a stop 50 meters to the east of the accident scene, you got down and ran to the police car in the field, checked the injured, Xu Qingquan didn't faint at that time, he saw your fingers scars.

I thought you were negligent before, but now I think you did it on purpose, you found Xu Qingquan awake, so you showed him the scar, because you know, Zhang Fangfang is in the same position, just a different hand, with the same scar, maybe This scar is also about you.

Regarding Liu Meiling’s death, Zhang Fangfang’s DNA was found at the pinch mark on the deceased’s neck, but it was not sweat or dander. We sprayed it with luminol reagent and found fluorescent reflections. I think you have learned legal knowledge and can To achieve such a perfect scene, you should know what it is, right?

The blood from the wound on the face of the deceased also belonged to Zhang Fangfang. We collected it again last night and analyzed it with a special method. We found that there was not only Zhang Fangfang’s DNA in it, but also sodium citrate, which is the anticoagulant. Only this substance Mixed with blood, it will not let the blood coagulate.

As for the images left by the vehicle and the back of the work clothes, these are all carefully designed by you. After all, the traces are too obvious, and it is easy to make people suspicious. Only such traces found after hard work will be recognized. Psychology is under control.

You will say that these are just our guesses. It can be said that yes, we were all guesses before we found your BMW. Find the car and extract your DNA from it, inside the wheels, in the trunk, and in the glove box. , extracted to the grit.

Don’t underestimate these things. In the microcosm, each specific location contains different substances. After comparison, we can confirm that your vehicle has been to the scene of a car accident. Oh, and by the analysis of brake marks, this car has also been unsealed. The Blue Ocean Hotel, and even went to the Quanshan Cemetery. "

Having said that, Xu Dayuan paused and found the photo of the pollen comparison.

"This is the pollen of copper hammer grass. You went to sweep the grave of your parents before August 8th. Maybe you took it as a weed. Let me tell you that this is a unique species of Qindao, and it is very demanding in the place where it grows. Seed pollen is sticky.

It appeared on the cake box, Xu Qingquan's shoe sole, your BMW wheel, your trunk, Liu Meiling's wound, and the murder dagger. Although there is no your DNA, the plastic fingerprint mixed with this pollen is still found. A lot, and one more thing, Xu Qingquan didn't lose his memory from the beginning. "

Zhong Xiaoyan smiled, raised her hands, and applauded Xu Dayuan.

"The investigation is really meticulous. I think you have cleaned out the tire gaps in that BMW, right? I did give Li Xiangqian the car, and I drove that car to Quanshan Village. Keep mine. Fingerprints and DNA, isn't that a normal thing?

As for what you said, I don't know. I approached Xu Qingshu just to investigate her. I got engaged to Xu Qingquan, and we didn't have too close contact. After all, we talked about it. I'm just a suitable marriage partner for him. Just one, don't come back sick, don't touch me before marriage.

When he was hospitalized, I went to divorce the engagement because my investigation was over, and there was no need to pretend. With the excuse of his promiscuity, I naturally wanted to break up with him. Such a disgusting person, you wouldn't think that I like him?
So let's end the interrogation. I refuse to admit these trumped-up crimes. "

Xu Dayuan nodded, he had to admit that Zhong Xiaoyan's answer was quite exciting.

Looking at Zhong Xiaoyan, Xu Dayuan smiled and waved towards Xiaoshan.

"Let's sign the transcript. I've asked all the questions that need to be asked. Take a look and sign if there are no mistakes."

Zhong Xiaoyan was handcuffed, and when she walked to the door, she stopped, nodded slightly to Xu Dayuan and said.

"Can I meet the man you mentioned?"

Xu Dayuan was a little puzzled, he paused to react.

"You want to see Zhou Ning, the deputy director of the technical department I mentioned?"

Zhong Xiaoyan nodded.

"Anytime, I'd like to meet him alone and ask him how he's coping with his parent's death."

Xu Dayuan raised his eyebrows.

"I will tell him that if he wants to, he can meet with you."

Zhong Xiaoyan was taken away, and when she finally turned around, she looked at Xu Dayuan with a different emotion.

Zhou Ning was silent for a long time, patted Da Zhao on the shoulder, and helped Liu Yongxin out, just in time to bump into Xu Dayuan, who shook his stiff neck.

"Zhou Xiaozhou, quickly sort out all the reports and documents and send them to me, and hand over this case to the procuratorate as quickly as possible."

Xiao Qu's eyes widened with disbelief.

"I didn't quite understand it. It's been a busy meal. There is no evidence to prove that Zhong Xiaoyan has anything to do with this case. If you hand it over to the procuratorate like this, aren't you waiting to be beaten back?"

Da Zhao slapped Xiao Qu's back with a slap, the other hand had already pinched a piece of flesh under Xiao Qu's armpit, and Xiao Qu's face was distorted.

"Don't worry, guys. Qu Heping has been working continuously for the past few days and has not rested for 48 hours. His mind is a little confused. I will take him to rest. Don't worry, we will sort out all the autopsy reports and various documents in a while. , we must not delay things."

Xu Dayuan glanced at Da Zhao meaningfully, Da Zhao smiled and dragged Xiao Qu away first, Zhou Ning supported Liu Yongxin, and nodded towards Xu Dayuan indifferently.

"Let's not talk about it, let's go back and prepare materials. We are too tired these days and haven't slept well. Should we hand over the investigation of Xu Qingshu, Kong Wanshan, and Zhang Fangfang along with this file?"

Xu Dayuan sighed.

"The matter of Kong Wanshan and his wife has been investigated, and the completeness of the evidence is a bit beyond imagination. Bureau Hu said that if this is the case in every case, the Economic Investigation Detachment can be disbanded.

As for Zhang Fangfang's matter, we need to find out about Huining's cooperation. I'll go with you. On the way, let's talk about it. We need to contact Director Yu, director of the Criminal Technology Center of Huining Public Security Bureau. Regarding the autopsy file of Zhang Fangfang's ex-husband, we need Call it. "

Zhou Ning nodded, and the three of them walked forward, Xu Dayuan didn't forget to turn around and wave to Liu Yufei and the others.

"Several meanings, I'm tired and stupid. I quickly completed the file and prepared the reimbursement form. I will sign it when I come back. It should be handed over and reimbursed. Then let me go to rest. Those in the hospital, Are you going to take a look?"

Having said that, Liu Yufei smiled awkwardly, and nodded slightly towards Peng Da.

"Peng Da, then I will go to work too, thank you this time."

"Come on less, next time I beg you, you just don't hesitate. I'm going to go too."

As he walked to the stairwell, the voice of greetings from behind faded away, Zhou Ning did not speak, Liu Yongxin squeezed Zhou Ning's hand, Zhou Ning was a little puzzled, and when he walked to the pavilion, Liu Yongxin simply sat down, took off his shoes, and fell down. Pour out the sand that does not exist in it.

"I'm getting old and I can't stand such a toss. I'll go home first. You guys should prepare all kinds of materials. If this case is handed over, there is a high probability that it will be called back, but it can be rearranged and handed over again. Anyway, it can't be called back twice. No, let's go."

After finishing speaking, he turned around and walked towards the north gate, singing an unknown Peking Opera joke while walking, humming and shaking his head, apparently in a good mood.

Looking at the back of Liu Yongxin going away, Zhou Ning felt the urge to cry at this moment.

Master is Master. Although he didn't participate in too many investigations, he still fully understood the case. Even Xu Dayuan's inquiry just now, after thinking about it, understood the meaning of it.

There is a person here whose parents were killed when he was young. When he mentioned this topic, Zhou Ning didn't understand at first, but after the trial of the certificate case, Zhou Ning understood.

At this moment, Xu Dayuan has made his position clear.

Regarding the four people involved in the incident back then, they should have investigated and compared even the smallest pollen, gravel, and DNA, but there was no direct evidence to prove that Zhong Xiaoyan was the murderer or the mastermind.

Zhou Ning sniffed and was full of words. It was not suitable to speak at the moment, and he held back for a long time before he could say a word.

"Leader, why don't I treat you to dinner? The standard of two hundred yuan cannot be higher!"

Xu Dayuan glanced sideways at Zhou Ning, took out a cigarette from Zhou Ning's pocket and lit it, and then threw the cigarette case and lighter to Zhou Ning.

"Fuck, good ones don't learn, bad plenums, you kid really inherited Liu Yongxin's stinginess, the standard of two hundred is not good, I want to eat big meals, sea cucumbers, abalones and lobsters are all like that."

(End of this chapter)